diff --git a/CMakeLists.txt b/CMakeLists.txt
index f247da3e1..291d3e3b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -242,6 +242,9 @@ set_target_properties(czmq
 set_target_properties(czmq
     PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${SOURCE_DIR}/src"
 )
+set_target_properties (czmq
+    PROPERTIES SOVERSION "4.0.2"
+)
 target_link_libraries(czmq
     ${ZEROMQ_LIBRARIES} ${MORE_LIBRARIES}
 )
diff --git a/NEWS b/NEWS
index 6a8740bff..fc86ff1ca 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-CZMQ version 4.0.2 stable, released on 201x/xx/xx
+CZMQ version 4.0.2 stable, released on 2016/12/31
 =================================================
 
 * Fixed #1559 - DRAFT zsock_new_*_checked symbols leak
diff --git a/configure.ac b/configure.ac
index ebfcb6c1d..c4c64b86c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,12 +31,12 @@ AC_SUBST(PACKAGE_VERSION)
 #
 # Libtool -version-info (ABI version)
 #
-# Currently 2.0.1 ("stable"). Don't change this unless you
+# Currently 4:2:0 ("stable"). Don't change this unless you
 # know exactly what you're doing and have read and understand
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
 #
 # libczmq -version-info
-LTVER="4:0:0"
+LTVER="4:2:0"
 AC_SUBST(LTVER)
 
 # Capture c flags
diff --git a/project.xml b/project.xml
index d13fa8024..dab8e5cc5 100644
--- a/project.xml
+++ b/project.xml
@@ -9,6 +9,7 @@
     >
     <include filename = "license.xml" />
     <version major = "4" minor = "0" patch = "2" />
+    <abi current = "4" revision = "2" age = "0" />
     <use project = "libzmq" />
     <use project = "uuid" optional = "1" implied = "1" />
     <use project = "systemd" optional = "1" implied = "1" min_major = "200" />